Flat wire for weaving single piece pile fabric



July 21,1936.

J. KREHBIEL FLAT WIRE FOR WEAVING SINGLE PIECE FILE FABRIC Filed April8, 1952 Ill I N VEN TOR JOHN KREHB/EL.

A TTORNE Y.

i aten ted July 21 1936 UNITED STATES FLAT WIRE FOR WE VING SINGLEPIECE-PILE FABRIG .lolm Krehb iel, Bronx, N. Y., assignor to j. J.

Krehbiel, New York, N. Y.

Application April 8 1932, serial No. 603,981 iolaim. (01.139-37) Thisinvention relates to the use of flat wires disposed in the direction'ofthe warp in the manufacture of pile goods. More particularly such wiresare here used for gaging the distance to 5 which the pile extends fromthe ground web and for supporting the pile loops. 7

Wires have been previously employed in the "manufacture of bile fabric,which were inserted iii the direction of the weft, either simultaneouslyit) with the weft or alterhatingly with the weft, as the weaveconstruction may require. Looms used for this purpose have a specialmechanism for inserting such wires in the directionof the weft and aretherefore called wire looms. The pile if: was formed by looping warpthreads around'the wires in a sequence as required by the weaveconstruetion. e

- The insertion of such wires in the direction of "the weft through theshed can only take place gradually and slowly, which fact considerablyreduces production on the said wire looms.

This invention relates to a new method of employing wires for thepurpose of creating fabrics similar to those produced by wire looms.Contrary to the arrangement of the wires in the wire loom, whichareinserted in the-direction of the weft, this invention provides forwires which are arranged stationarily in the woven fabric in thedirection of the warp, and which extend from the fell of the fabric overseveral repeats toward the take-up. They are exchangeable, (allowing va-Irlat'ioiis in height andlength) according to the tension appliedto thethreads which areengaged upon said wires, and according to thecharacter- 35 istie'sof said threads, i. e., in accordance with the jduality and density of the fabric, said wires are suitably made longeror shorter.

These stationary wires carrya pile support weft inserted above them, theweft being supported 40' Liam enough to support in turnthe pile formingthreads. In other words, the pile weft resting on the stationary wiresserves the same purpose asthe weft-wise inserted wire of the wire loom.

s51 ehaiigiiig the height of these stationary wires, 45 the height ofthe pile can be controlled much more readily than by the wires of thewire loom;

because the wire of a wire loom is limited to the size of the shed intowhich it is inserted, while the stationary wires or gages used in thisinven- 50 tion are not limited in that respect.

The stationary wires of my invention must be constructed so that a partthereof can be raised and lowered around a joint laying in the fell ofthe fabric, in order to permit the formation of a 5 shed for the purposeof inserting various wefts.

For this purpose a stationary section of the wires mentioned above ishi'ngedly or flexibly connected with another wire which may be raised orlowered as the shed may require. This swinging wire section or linkserves at the same time for keeping 5 the stationary wires in place sothat they move neither to the front nor back of the fell of the fabric.v

In raisingand lowering the other wire section or link for the purpose offorming the shed, the 10 end thereof must be swung in a circle aroundthe point at which it is joined, hinged, linked or otherwise connectedwith the stationary part of the wire.

This invention has therefore the object of providing for a circularmotion of the end of the movable wire or link while it retains the gagein a stationary positiomand means are provided for supporting andactuating the link accordingly.

It is also clear that the more the shed wire,

link or movable wire is moved up or down from a horizontal position, thelarger will the longitudinal clearance space reqiiired for itsswinging', free end. Inasmuch as that space must be provided foradditionally to the harness space, it should be limited to a minimum.This invention therefore provides for a shedding motion which places thecenter of the shed in a horizontal line with the stationary wiresection, so

that the shed wire, when'ashed is formed, travels like distances up ordown from "said center which are largerbr sinaller'as the type of thefabric and ,the siae of the shuttle may require.

ing, in which:

V Fig. 1 -shows, in a longitudinal sec ion, part bf a. loom to which myinvention is applied. Fig. 2 shows the corresponding loom parts in 4oaparallel perspective view, illustratihg a'm'odification r my invention.

Fig. 3 illustrates, in a parallel "perspective detail view, theexchangeability or the stationary wire or gage.

Fig. 4 shows a similar detail view of the heddle which retains saidgage.

Fig. 5 illustrates, by a longitudinal cross-section, anothermodification of this invention.

Similar numerals refer to similar parts 5 throughout the various, views:

The finished pile goods I I travel to the left over a support l2 inFig. 1. The pile loops M are supported by the wefts I 3 of the upperfilling, whereas the body of the weave I5 is spaced therebelow. 5

Upon the lower filling or ground web l5 rest the stationary wires l6,which hereinafter will be referred to as the gages. The gages supportthe wefts l3 of the upper filling which slide off the gages when thegoods travel to the left. The gages I6 are rotatably swingable aroundthe end of movable wires H which hereinafter will be referred to as thelinks. These links also circumscribe the shed during their movements, inwhich travels the shuttle l8 in front of a reed IS. The links I1 extendthrough the reed |9 and are engaged upon vertical wires 20 which willhereinafter be referred to as heddles. The heddles are mounted in thecustomary manner in avertical- 1y (arrow 2|) reciprocating heddle frame.

The links l! are attached to the heddles 20 in the following manner. Theheddle 20 consists of two blades 22 and 23 (Fig. 4) which are spacedlyconnected by a rivet 24. The space allowed be:

tween the blades 22 and 23 by means of the rivet 24 allows free'movementof the link 25, the rivet 24 extending through a longitudinal slot 23 atthe the reciprocations of the heddle 2 l. The shed is arrangedsubstantially centrally between the extreme positions of the link H inits up and down ;movements. The lowest position of the link isindicated-by the numeral its center position by Ila and its highestposition by MD. The slot 26 is of such length, that it allows freemovement along said slot during the reciprocation of the heddle 2|. Inthe extreme up and down positions I! and Ill) of the link, the rivetslides into the extreme corner of said slot 23. The gage I6 is howevernot stationarily supported, but rests upon the slowly moving goods.Therefore it will slowly travel to the left, unless the extreme cornerof the slot 26 in link I1 is engaged by rivet 24 whenever the linkreaches its highest and lowest position, so that the gage I6 is slightlypulled to the right to whatever extent it has moved to the left bytravelling with the moving goods Thus the gage is pulled out of thegoods, which slide from the gage at the left. The warps 4 I, 42 and ,43form the shed together with the links,

. completing the exemplary showing of a fabric.

Fig.2 shows gages I6 and heddles 20, similar to those of Fig. 1, andshows theheddles to be differs from -the link I! of Fig. l by not havingany slot 26. It is rotatably hinged at its free end upon the rivet 24connecting the blades to the heddle 20. In an arrangement of this kind,the gage l6 would of course be pulled back and forth in a horizontaldirection while the heddle frame moves up and down.

the proper forming of a shed; they are avoided Such movements of thegage l6 would interfere with the weaving'and by oscillating the heddleframe, i. e. by moving the heddle frame along a curve so that the gage[6 remains stationary and the link 3| swings around the point at whichit is hinged upon said ease.

The movement of the heddle along a curved path is brought about in thefollowing manner: Two brackets 32 and 33 extend from the stationaryframe of the loom. Two brackets 34 and 35 are mounted upon the crossmembers of the heddle frame 28. The stationary brackets 32 and 33 andthe brackets 34 and 35 are connected to each other, respectively, byconnecting rods 36 and 31, the length between the centers of whichcorresponds to the distance between the points at which the link 3| ishinged upon the gage Hi, and the heddleZD. The connecting rods 36 and 31are disposed substantially parallel to the links 3|. The heddle frame 28will therefore swing through a curve-while being pulled up and down bycords 29, so that the rivet 24 swings in a circle around the end of gageIt, at which the link 3| is fastened thereupon.

The heddle frame may also be caused to move in such a manner that thelink 3| swings around the end of gage l6, by an arrangement like thatshown in Fig. 5. Here a pin 38 extends from the end of the frame 28 andis guided by a groove 39, in a bracket 40 mounted on the loom (notshown). There is also the difference between this arrangement and thatof Fig. 2, that the upper end of the frame moves along a vertical path,the groove 39 being curved more than the path along which swings therivet 24 around the end of gage I6, so

that the rivet 24 follows the desired path around the end of thestationary gage Hi.

The principle of Fig. 2 in which both theends of the heddle frame areguided may of course also be applied to the pin and groove arrangementof Fig. 5, and vice versa.

While I have shown and described my invention with some degree ofparticularity, it will be realized that other modifications and changesmay be resorted to under special conditions. I therefore do not wish tobe limited and restricted to the exact details shown and described, butreserve the right to make such'changes and modifications as may fairlyfall within the scope of the subject matter being claimed.

What I claim is:-

' In combination with a loom weaving a fabric with superimposedpile-supporting wefts, longitudinally disposed gages spacing said fabricand said Weft s apart, a frame, shed-forming links con- 7 necting' saidgages to said frame, a mechanism raising and lowering said frame, and alever parare around the point and fulcrum at which the links areconnected to said gages'and which-is thus renderedstationary relativelyto the loom.

JOHN KREHBIELJ.

